Minecraft expects an object (curly brackets), but is given a string. Using a 'simple_random_selector' with only one object provides an awkward workaround.
I added a datapack that can cause the first crash, and the crash report.
2020-07-31, 09:39:51 PM UTC
pack.mcmetadim_1.jsondim_2.jsondim_1.jsoncrash.zipcrash-2020-07-31_16.18.11-server.txt
dim_2.jsondim_1.jsondim_1.jsonpack.mcmeta
Minecraft expects an object (curly brackets), but is given a string. Using a 'simple_random_selector' with only one object provides an awkward workaround.
I added a datapack that can cause the first crash, and the crash report.